An engineer is responsible for designing a culvert at the point of solution of the watershed below. To do so, it is vital to know the runoff at this location when it rains. Calculate runoff for the watershed below in cfs, using the rational method. Rainfall intensity is 2 "per hour. Areas are given in the table below.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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An engineer is responsible for designing a culvert at the point of
solution of the watershed below. To do so, it is vital to know the
runoff at this location when it rains. Calculate runoff for the
watershed below in cfs, using the rational method. Rainfall
intensity is 2 "per hour. Areas are given in the table below.
A₁
A₂
Аз
Ан
Area A (acres)
1
50
2
3
4
70
40
90
To calculate runoff coefficients at each section, use the following
formula:
C₁ = 0.01 × A; , where A; is the area in acres.
The rational method formula is given below:
KCIA
Q=
Point of solution
=
Transcribed Image Text:An engineer is responsible for designing a culvert at the point of solution of the watershed below. To do so, it is vital to know the runoff at this location when it rains. Calculate runoff for the watershed below in cfs, using the rational method. Rainfall intensity is 2 "per hour. Areas are given in the table below. A₁ A₂ Аз Ан Area A (acres) 1 50 2 3 4 70 40 90 To calculate runoff coefficients at each section, use the following formula: C₁ = 0.01 × A; , where A; is the area in acres. The rational method formula is given below: KCIA Q= Point of solution =
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